Here's a sentence I pruned from somewhere...
彼らは2~3年後に結婚して、現在は2人の娘がいます。
While it's easy to understand the meaning, I don't know how you'd read it aloud.
How would a native read 2~3? The same way a native English speaker would read "2-3" as "two through three" or "two to three" etc.